If you are asking how to subtract 125 centimeters and make it 87.5, you have to subtract from 125. The easiest way to do this is to subtract 87.5 from 125, getting 37.5. So, if you add 37.5 to 87.5, you will have 125. So, the correct answer is to subtract 37.5 to get 87.5.
Hope this helps you:)
The rectangle is 40 cm long (aka your ratio is 40:24)
Answer:X would be -12
Step-by-step explanation: -12-10=-22
First, you have to compare same unit of measurement for uniformity. Convert feet to inches, knowing that 1 foot is equal to 12 inches.
3*12 = 36 inches
Each square brick is 3 inches wide. Divide the whole width of the path by the width of each brick to obtain the number of bricks:
36/3 = 12
Thus, there are 12 bricks in the path.
Answer:
x = 3/8
Step-by-step explanation:
The difference of the two squares can be found several ways. One way uses the "difference of squares" special form.
a² -b² = (a -b)(a +b)
For the given squares, this is ...
(2x +3)² -(2x -3)² = ((2x +3)-(2x -3))((2x +3) +(2x -3)) = 6(4x) = 24x
We want to find x that makes this difference be 9:
24x = 9
x = 9/24 = 3/8
For the value x = 3/8, the difference between the squares of the binomials will be 9.